SEARCH Articles Figures Tables 2- pyridine tautomerization reactions 2-Hydroxy-6-methoxy-pyridines tautomerism 2-Hydroxy-6-methyl-pyridines tautomerism 4- pyridine 1-oxides tautomerism 4- pyridine, tautomerism 4-Amino-2- pyridine, tautomerism 5- Nitro-2- pyridine, tautomerism Amino-pyridines, acylation tautomerism Imidazo pyridine, tautomerism Pyridine hydroxypyridine-pyridone tautomerism Pyridine, reactions with—continued and tautomerism Pyridines, dihydro-, tautomerism Tautomerism of Pyridine and Pyrimidine Dihydro Derivatives